Know the difference between calculating slope by starting at a left point and moving to a right point, and by starting at a right point and moving to a left point. We covered this in today's (11-4) class notes.
Know how the slope changes as you move along the graph of a straight line.
Write correct mathematical expressions using words or symbols for "change in", "movement in", x, y, "rise",
"run", "vertical", "horizontal", "up", "over".
Today in class we looked at the diagram for the wheelchair ramp. We converted 28 inches to 2.33 ft, and we used the rise of 2.33 ft with the run of 31.9 ft to get a slope of .073.
The table on page 86 shows recommended slopes of 1/16 and 1/12, which are equivalent to .0625 and .0833. Our slope of .073 falls between these values, so we can use our plans to build a ramp.
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